#VU98851 Memory leak in Linux kernel - CVE-2024-49870

Vulnerability identifier: #VU98851

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-49870

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the cachefiles_open_file(), fput() and cachefiles_look_up_object() functions in fs/cachefiles/namei.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/d32ff64c872d7e08e893c32ba6a2374583444410
https://git.kernel.org/stable/c/c7d10fa7d7691558ff967668494672415f5fa151
https://git.kernel.org/stable/c/e4a28489b310339b2b8187bec0a437709be551c1
https://git.kernel.org/stable/c/7fa2382f97421978514a419c93054eca69f5247b
https://git.kernel.org/stable/c/da6ef2dffe6056aad3435e6cf7c6471c2a62187c

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.